#include "il2cpp-config.h"
#include "class-internals.h"
#include "Il2CppTypeHash.h"
#include "utils/StringUtils.h"
#include "utils/HashUtils.h"
#include <cassert>

using il2cpp::utils::HashUtils;
using il2cpp::utils::StringUtils;

namespace il2cpp
{
namespace metadata
{

size_t Il2CppTypeHash::operator() (const Il2CppType* t1) const
{
	return Hash (t1);
}

size_t Il2CppTypeHash::Hash (const Il2CppType* t1)
{
	size_t hash = t1->type;

	hash = HashUtils::Combine (hash, t1->byref);

	switch (t1->type)
	{
	case IL2CPP_TYPE_VALUETYPE:
	case IL2CPP_TYPE_CLASS:
		{
		return HashUtils::Combine (hash, t1->data.klassIndex);
		}
	case IL2CPP_TYPE_SZARRAY:
	case IL2CPP_TYPE_PTR:
		{
		return HashUtils::Combine (hash, Hash (t1->data.type));
		}
	case IL2CPP_TYPE_GENERICINST:
		{
		const Il2CppGenericInst *inst = t1->data.generic_class->context.class_inst;
		hash = HashUtils::Combine (hash, t1->data.generic_class->typeDefinitionIndex);
		for (uint32_t i = 0; i < inst->type_argc; ++i)
		{
			hash = HashUtils::Combine (hash, Hash (inst->type_argv[i]));
		}
		return hash;
	}
	default:
		return hash;
	}
	return hash;
}

} /* namespace vm */
} /* namespace il2cpp */
